Building construction



April 9, 1929. R. H. TROUTH BUILDING CONSTRUCTION Filed May 1928 Patented e t. a, teas. lfithltiii RALPH HENRY TROUTH, OF EDMONTON, ALBERTA, CANADA..

7 BUILDING CONSTRUCTION.

Application filed May 7, 1928. Serial No. 275,868. 7

, This invention relates to a building conif; desired, and are particularly adapted for struction of the type disclosed and claimed in the construction of silos, Water tanks, small my co-pending applicationser. No. 680,149, houses and the like. The beams are so arfiled December 12, 1923. ranged as to be laidin courses, one on top of 5 The object of the present invention is to the other, until the'structure is built to the I provide a construction which avoids certain required height. The subject matter of the defectsof my prior construction and which invention has to do with the joints formed can be more easily and cheaply manuf ac- Where one beam is laid across another. v tured. In the construction of my said prior Referring to the drawings in detail and 10 application, the grooves on the sides of the particularly to Figures 1, 2 and 3, the beams beams are produced by cutting into the vertiare indicated by. the numeral 10. Each of cal faces of the beams at an angle to the longithe beams at each end is jointed to the adjatudinal axis thereof. In order to produce a cent beams in the same horizontal course. cut of that kind, it is necessary that the cut- This is accomplished by providing'suitable 15 ting tool be arranged at an angle to the direcgrooves and notches as now to be described.

tion of movement of the beam, and thus the In the present construction, each beam 10 production of beams of that kind involves is provided ononeof its vertical sides or mechanism which is considerably complifaces with grooves 12- one of such grooves becated. ing adjacent each end of the beam. Also,

20 Also, at one side of each of the grooves, the other vertical face orsideof the beam is made in accordance with the former construcprovided with similar I grooves 12 The tion, it is necessary to have an overhanging grooves 12 and 12 are preferably cut into the shoulder. It has been found that such shoulbeams by means of cutter heads indicated ders or cornersare very apt to break or split at 13. These cutter heads are arranged in off, thus rendering the beam defective and pairs and each is mounted in a plane perpenpermitting snow and rain to get into thejoint. dicular to the axis of the beam to be cut or The present invention aims to overcome grooved. It will be obvious that all the cutthese diliieulties by providing the beams ter' heads 13 may be geared together and op- With grooves which do not have the overerated as a single unit; so that by passing the 30 hanging shoulders above mentioned, and beam 10 only once between these cutter heads, which can be formed in the vertical faces of the'pairs of grooves at each end of the beam the beams by cutter heads rotating in a plane may be cut in a single operation. The cutter perpendicular to the axis of the beam. This heads 13 are provided on each .side with a bevresults in -a simplification in the machinery eled portion 13; and it will be evident that 35 necessary to make the beams, because with the these beveled portions will out correspond cutter heads or dado heads arranged as ing beveled sides in the grooves, that is, each stated, the beams may be given one pass groove will have the sides thereof inclined through a series of four cutters which will outwardly or flared from the bottom of the thus complete the formation of the grooves groove to the vertical face of the beam, such 40 in one operation. inclined sides of the grooves being indicated My improved construction is set forth in at 14. All the grooves 12 and 12 are simithe following specification and illustrated in lar and all are provided with such inclined the accompanying drawings, in which sides 14:. It will be evident that by this ar- Figure 1 is a plan view of one form of conrangement there will be no sharp overhangstruction, showing the cutter heads in dotted ing corners adjacent the grooves as in the lines; case of my former construction.

Figure 2 is a vertical elevation of one of At each end, the beam 10 is also provided th b a with an upper notch 15 and a lower notch 16.

Figure 3 is aperspective view of the end of The notches 15 and 16, on each end of the 50 abeam such as shown in Fig. 2; and beam merge with the grooves at that end. Figure 4 is a slightly modified construction The result is that at each end of the beam a in which grooves are formed on one side only tenon 17 is formed. The grooves 12 and 12 of the beams. are made somewhat wider than the tenons 17 It will be understood that beams of the thus forming ledges 17 at the bottom of 55 type herein disclosed are used for building the grooves. The pair of grooves 12, 12 at structures of octagonal shape or other shapes, each end of the beams are not arranged d1? rectly opposite to each other but are offset laterally. The notches 16 and 17 therefore extend diagonally of the length of the beam. This offset arrangement of the grooves and diagonal arrangement of the notches is, of

course, necessary as the beams are intended to be laid at an obtuse angle to each other in forming an octagonal or other bulldlng hav ing obtuse angles at the corners.

Figure 4 shows an arrangement in which the beams 20' are provided with grooves 22 on one vertical face only, the other face being left straight. This'arrangement, however, is similar to that shown in the other forms of the. device in that the grooves '22 are provided with inclined side walls 22*? which flare outwardly from the bottom .Of the groovs to the surface of the vertical sides. The rest of the joint arrangement, illustrated in Figure 4;, it is not necessary to'describe as this forms no part of the present appli- 'isclaimed as new and desiredto be secured by Letters Patent is:

1. A rectangular building beam having on one vertical side a pair of spaced vertical grooves therein and also having upper and lower notches on each edge merging with said grooves to form tenons in the beam, each of.

said grooves increasing in width from the bottom thereof outwardly to the surface of the vertical side of the beam.

2. A rectangular'building beam having on one vertical side a pair of vertical grooves, spaced apart, and also having upper and lower 7 notches on each edge merging with said grooves toform tenons in the beam, the side walls of each of saidgr-ooves flaring outwardly from the bottom of the grooveto the surface of the vertical side of the beam,

A rectangular building beam having on each vertical side thereof a vertical groove,

a notch on each edge of the beam merg ng with said grooves, whereby atenon is formed in the beam, the side walls of each of said grooves flaring outwardly from the bottoms .of the groovesto the surfaceof the vertical side of the beam. r

rectangular building beam'hav ng on one vertical side a pair of vertical grooves spaced apart and also having notches on the upper and lower edge thereof merging with said grooves to form tenons, each of said grooves at its outer portion being wider than it is at the bottom thereof.

5. A rectangular building beam having a pair of vertical grooves one on each vertical side thereof, a notch on each edge of said beam extending between said grooves, whereby a tenon is formed in the beam, the bottom of'each groove being wider than the length of the tenon, and the sidewalls of each groove flaring outwardly from the bottom thereof to the surface of the vertical side ofthe beam.

In testimony whereof I hereunto affix my signature.

RALPH HENRY Tnourn. 

